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在研究塔中地区断裂发育特征的基础上，根据泥岩涂抹系数定义，对研究区几条主要断层在石炭系中的泥岩涂抹系数进行了计算，结果表明，除Ｆ２断层泥岩涂抹系数大于４，所形成的泥岩涂抹层空间分布连续性相对较差，侧向封闭性不好，不利于油气聚集成藏外，其余几条断层（Ｆ３、Ｆ４、Ｆ５）泥岩涂抹系数均小于４，所形成的泥岩涂抹层空间分布的连续性相对较好，侧向封闭性好，为塔中地区石炭系油气聚集成藏起到了重要作用。
Based on the study of fault development characteristics in the Tazhong area, the mud smear coefficients of several major faults in Carboniferous in the study area are calculated according to the definition of mudstone smear coefficient. The results show that the smear coefficient of mudstone except F2 fault is more than 4 The formation of the mudstone coating layer is relatively poor spatial distribution of continuity, lateral sealing is not good, is not conducive to hydrocarbon accumulation, the remaining several faults (F3, F4, F5) mudstone smearing coefficient is less than 4, the formation of mudstone The continuity of spatial distribution of smear layer is relatively good and lateral sealing is good, which plays an important role in the accumulation and accumulation of Carboniferous hydrocarbon in the central Tazhong area.